Heating system.



No. 822,819. PATENTED JUNE 5, 1906. 0. E. BOWERS.

HEATING SYSTEM.

AFPLIOAIION FILED 13110.28, 1904.

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No. 822,819. v PATENTED JUNE 5, 1906. G. E; BOWERS. HEATING SYSTEM.

APPLICATION FILED 1330.28, 1904.

2 s11 TS-SHEET 2 WM E 5306 FXTQQQ) 2L7 UNITED STATES PATENT oer-non. CHARLES E. BOWERKCERVESTMINSTER, MARYLAND.

HEATING SYSTEM.

the same.

This invention relates to devices for use in poultry culture, and more particularly to eating systems therefor, and has for its object to rovide aheating system for this purpose wliich will be simpleand efiicient and which will be arranged to maintain the temperature of the dQVlCB heated at a predetermined point.

Another object is to rovide a heatin system of the water-circuating type whic will be provided with an overflow-tank for the reception of the excess of water caused by expansion and which Will be arranged to return the water to the again'contracted.

It will beunderstood that the device may be used in connection with incubators,

system after it has brood'ers, or similar devices.

Other objects and advantages will be apparent from the following description, and it will be understood that modifications of the specific construction shown ma be made and any suitable materials may e used for:

the various parts without departing from the spirit of the invention.

In the drawin s forming a portion of-this specification, and in'which like numerals of reference indicate similar parts in the several views, Figure 1 is a front view of an incubator provided with the resent invention. Fig 2 is an end view of t e structure shown in ig. .1, showing the boiler attached thereto. Fig. 3 is a lon itudinal section of the incubator, taken on llne 3 3 of Fig. 2. 'Fig. 4 is a top plan view showing the top of the incubator roken away to expose the heatin -pipes.

Referringnow to the drawings, t e present invention is shown a plied to an incubator 5,

including the usual ollow body portion and supporting-legs. Secured to one end of the incubator, exteriorly thereof, there is a boiler 6,-havin a plurality of longitudinally-extending ire tubes 7 passing therethrough and provided with a lamp, or other heating Specification of Letters Patent. Application filed December 28,1904. Serial No. 238,577.

the tubes 7.

Patented. June 5, 1906.

device 8, disposed therebelow, there being a suitable con uctor 9, provided for the passage of heat from thelamp to and'through Engaged with the upper end of the boiler there isa cap 10, having a struck-up portion centrally thereof, which forms a heat-dome 11, and extending laterally from the heat-dome there is a flue 12, which extends into the in cubator through the wall thereof to a point at approximately the central vertical axis of the body portion, Where it is turned u wardly, as shown at 13, extending through the top of the-body portion. Formed through the top of the heat-dome 11 there is a small 0 ening 14, and pivoted upon the top of the b0 y por-. tion there is a damper-arm. 15, which extends beyond the end of the bod portion and y from which there depends a amper 16, the

damper-arm being movable to bring the damper into and out of position to close-the opening 14. Athermostat 17 is located within the body portion and is connected with the damper-arm 15 for movement thereof, to bring the damper into position to close theopening when the temperature within the body rises above a certainpoint, and the thermostat .is arranged for adjustment in any suitable manner.

At the side of the boiler adjacent 'to the end of the body portion it is provided With a laterally-projecting extension 18, which extends from the-top to the-bottom of the boiler, the extension being hollow and communicatingwith the interior of the boiler. This extension lieswithin an opening 19 in the end of the body portion and projects into the latter. 'Disposed within the body portion are pipe-0011s 20, l g adjacent to the walls thereof, the coils eing formed from a continuous pipe or a pluraht of connected sections of pipe, and at one en this ipe communicates with the extension 18 of t e boiler, adjacent to the upper end thereof, and at the remaining end with the extension adjacent to the lower end thereof. The pipe-coils are so slanted that the heated water from the boiler will pass out through the pipe communicating with the upper end of the extension and throughthe 00118 of pipe back to theboiler at the lower end of the extension, the expanslonof the water caus' the circulation of the water, as will be rea 'ly understood.

Extending outwardly from the boiler adj acent to its bottom there is a pipe 21, which is turned upwardly, as shown at 22, and has mountedzupon its upper end an overflowtank 23, with which it communicates, this tank being located above the top of the boiler. Communicating with the boiler at its to and extending upwardly therefrom there is an overflow-p1pe 24, which is turned laterally, as shown at 25, to discharge into the tank 23, and it will be apparent that any eX-- cess of water caused by eX ansion will ass out through the pipe 24 to t e tank 23, W ere it will be cooled and from which'it will be returned by the pipe 21 to the boiler. The tank 23 is open at its top, so that the boiler may be filled by pouring water into the tank.

The incubator is provided with an air-i11- gress pipe 26 and an air-egress pipe 27, communicating with the interior of the incubator adjacent to the top and bottom thereof, respectively, for ventilation thereof. Exteriorly of the incubator the ingresspipe is turned downwardly, while the egress-pipe is turned upwardly, the former being considerably larger than the other, as shown.

What is claimed isi In an incubator, the combination with a hollow body portion, of a boiler located eX- teriorly thereof and having a lateral projection extending into the body portion, pipecoils lying within the body portion and communicating with the projection at the upper and at the lower portions thereof, a flue in the boiler, a pipe passed through the body portion and communicating with the flue, means for heating the boiler, an overflowtank disposed above the boiler, a pipe com-' municatmg with the lower portion of the tank and with the lower portion of the boiler, and a second pipe communicating with the upper portion of the tank and with theupper portion of the boiler.

In testimony whereof I afiiX my signature in presence of two Witnesses.

CHARLES E. BOWER'S. Witnesses HARRY GosNELL,

JOHN E. .RIcKLE. 

